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CONTRACTS AND AGREEMENTS - Brokerage Commissions (Details) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Brokerage commissions | $ 60,407 | $ 161,652 | $ 227,185 | $ 413,504
Percentage Of Average Daily Net Assets | 0.10% | 0.20% | 0.10% | 0.20%
Rebalancing Investments Transaction [Member] |  |  |  |
Brokerage commissions |  |  | $ 214,136 | $ 396,633
Percentage Of Average Daily Net Assets | 94.26% | 95.92% | 94.26% | 95.92%
Creation And Redemption Activity [Member] |  |  |  |
Brokerage commissions |  |  | $ 13,049 | $ 16,871
Percentage Of Average Daily Net Assets | 5.74% | 4.08% | 5.74% | 4.08%

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- Definition The amount of expense during the period for floor brokerage fees paid to other broker-dealers to execute trades on their behalf, stock exchange fees, order flow fees, and clearance fees. + References No definition available. + Details
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